Home / 155,385.70-214,318.65-101,584.42

Finding the Fourth Proportional to 155,385.70, 214,318.65 and 101,584.42

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Solution

The fourth proportional to 155,385.70, 214,318.65 and 101,584.42 is: 140,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,385.70 : 214,318.65 = 101,584.42 : x
  2. Step 2: Convert to fraction form
    155,385.70/214,318.65 = 101,584.42/x
  3. Step 3: Cross multiply
    155,385.70x = 214,318.65 × 101,584.42
  4. Step 4: Simplify right side
    155,385.70x = 21,771,435,755.43
  5. Step 5: Solve for x
    x = 21,771,435,755.43/155,385.70
  6. Step 6: Final answer
    x = 140,112.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.